We divide 859371 by 30
The aim is to understand the frequency of 30 in 859371.

On to step 1:
The number 30 fits into 8 0 times, leaving a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Grab the next digit (5) from the dividend, add it to 8, then carry on: 85 / 30

Step 2:
The number 30 fits into 85 2 times, leaving a remainder of 25.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
The remainder is 25 after subtracting 60 from 85.
Append the next digit (9) from the dividend to 25 and continue with: 259 / 30

Moving on to step 3:
If we divide 259 by 30, we get 8 and a remainder of 19.
Write down 8 as next digit of the result. 
Result so far: 28.0
Deduct 240 from 259 and we're left with 19.
Grab the next digit (3) from the dividend, add it to 19, then carry on: 193 / 30

On to step 4:
193 divided by 30 is 6 with a remainder of 13.
Use 6 as the next digit of our solution. 
Result so far: 286.0
The remainder is 13 after subtracting 180 from 193.
Include the next digit (7) from the dividend after 13, then repeat: 137 / 30

Advancing to step 5:
The number 30 fits into 137 4 times, leaving a remainder of 17.
Write down 4 as next digit of the result. 
Result so far: 2864.0
Subtract 120 from 137 to get 17.
Bring next digit (1) of the dividend behind the 17 and repeat the process: 171 / 30

Moving on to step 6:
30 can be fit into 171 5 times, resulting in a remainder of 21.
Use 5 as the next digit of our solution. 
Result so far: 28645.0
If we subtract 150 from 171, we get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Advancing to step 7:
When dividing 210 by 30, we get 7 with a remainder of 0.
Put 7 as the next digit of the answer. 
Result so far: 28645.7
If we take 210 away from 210, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 8:
If we divide 0 by 30, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 28645.7
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 9:
30 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 28645.7
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 28645.7 and a remainder of 0.0.